Package org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer

Examples of org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster.doAction()

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    Cluster cluster = new Cluster(master, clusterState, null, null, null, null, rackManager);
    // check whether moving region1 from servers[1] to servers[2] would lower availability
    assertTrue(!cluster.wouldLowerAvailability(hri1, servers[2]));

    // now move region1 from servers[0] to servers[2]
    cluster.doAction(new MoveRegionAction(0, 0, 2));
    // now repeat check whether moving region1 from servers[1] to servers[2]
    // would lower availability
    assertTrue(cluster.wouldLowerAvailability(hri1, servers[2]));

    // start over again
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    cluster = new Cluster(master, clusterState, null, null, null, null, rackManager);
    // check whether a move of replica_of_region2 from servers[12],rack3 to servers[0],rack1 would
    // lower the availability
    assertTrue(!cluster.wouldLowerAvailability(hri4, servers[0]));
    // now move region2 from servers[6],rack2 to servers[0],rack1
    cluster.doAction(new MoveRegionAction(2, 2, 0));
    // now repeat check if replica_of_region2 from servers[12],rack3 to servers[0],rack1 would
    // lower the availability
    assertTrue(cluster.wouldLowerAvailability(hri3, servers[0]));
  }
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    Cluster cluster = new Cluster(clusterState, null, null, rackManager);
    // check whether moving region1 from servers[1] to servers[2] would lower availability
    assertTrue(!cluster.wouldLowerAvailability(hri1, servers[2]));

    // now move region1 from servers[0] to servers[2]
    cluster.doAction(new MoveRegionAction(0, 0, 2));
    // now repeat check whether moving region1 from servers[1] to servers[2]
    // would lower availability
    assertTrue(cluster.wouldLowerAvailability(hri1, servers[2]));

    // start over again
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    cluster = new Cluster(clusterState, null, null, rackManager);
    // check whether a move of replica_of_region2 from servers[12],rack3 to servers[0],rack1 would
    // lower the availability
    assertTrue(!cluster.wouldLowerAvailability(hri4, servers[0]));
    // now move region2 from servers[6],rack2 to servers[0],rack1
    cluster.doAction(new MoveRegionAction(2, 2, 0));
    // now repeat check if replica_of_region2 from servers[12],rack3 to servers[0],rack1 would
    // lower the availability
    assertTrue(cluster.wouldLowerAvailability(hri3, servers[0]));
  }
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